Jennifer Hudson hates wearing heel highs for the 'Sex and the City' movie.The Oscar-winning actress - who plays columnist Carrie Bradshaw's assistant in the hotly-anticipated big screen adaptation of the hit US TV series - is struggling to walk in stilettos for her scenes.She told Us Weekly magazine: "They love heels! The producer Michael Patrick King is like, 'Heels all the time! Have to wear the heels!'"I'm not a shoe girl at all, so I'm like, 'Are you serious?' So that's very different for me."The shows main stars - Sarah Jessica Parker, Cynthia Nixon, Kristin Davis and Kim Cattrall - are all famed for their love of highs and wore them constantly throughout the six series of the show.Jennifer has refused to reveal what happens in the movie.She said: "You'll have to wait and see. I'm not going to be the one to let the cat out of the bag."Storylines that have already been leaked include Carrie's wedding to on/off lover Mr. Big and Charlotte York's pregnancy.However, Chris Noth, who plays Mr. Big, hinted all is not what it seems and claims some fans have jumped to conclusions.